Home / 2,812.82-4,219.57-1,170.48

Finding the Fourth Proportional to 2,812.82, 4,219.57 and 1,170.48

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Solution

The fourth proportional to 2,812.82, 4,219.57 and 1,170.48 is: 1,755.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,812.82 : 4,219.57 = 1,170.48 : x
  2. Step 2: Convert to fraction form
    2,812.82/4,219.57 = 1,170.48/x
  3. Step 3: Cross multiply
    2,812.82x = 4,219.57 × 1,170.48
  4. Step 4: Simplify right side
    2,812.82x = 4,938,922.29
  5. Step 5: Solve for x
    x = 4,938,922.29/2,812.82
  6. Step 6: Final answer
    x = 1,755.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.